---
title: "Create Artifact"
method: POST
path: "/v1/projects/{project_id}/artifacts"
tags: ["artifacts"]
---

# Create Artifact

`POST /v1/projects/{project_id}/artifacts`

Create a new artifact for a project.

Called by the chat API when a visualization tool is invoked.

## Path parameters

- `project_id` string, uuid, required

## Request body

- ArtifactCreate
  - `artifact_type` string, required
  - `title` string, required
  - `description` string, nullable
  - `data_json` object, required
  - `source_message_id` string, uuid, nullable
  - `entity_refs` string[], nullable

## Response `201`

Successful Response

- ArtifactOut
  - `id` string, uuid, required
  - `project_id` string, uuid, required
  - `workspace_id` string, uuid, required
  - `artifact_type` string, required
  - `title` string, required
  - `description` string, nullable, required
  - `data_json` object, required
  - `source_message_id` string, uuid, nullable, required
  - `entity_refs` string[], nullable, required
  - `created_at` string, date-time, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/ontora/apis/ontora-api.md) · [All operations](https://skmtc.dev/ontora/apis/ontora-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/ontora/ontora-api/revisions/7f57037fd94b/schema)